{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:YAL37TVFIGSR4APJKJJ6EUF47Z","short_pith_number":"pith:YAL37TVF","schema_version":"1.0","canonical_sha256":"c017bfcea541a51e01e95253e250bcfe429b27a9bf6964d405e33ff5e21b7f20","source":{"kind":"arxiv","id":"1103.0265","version":1},"attestation_state":"computed","paper":{"title":"Early-Type galaxies at z ~ 1.3. III. On the dependence of Formation Epochs and Star Formation Histories on Stellar Mass and Environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alessandro Rettura, A. Raichoor, B. Holden, F. Nakata, G. Illingworth, H.C. Ford, J.P. Blakeslee1, M. Huertas-Company, M.J. Jee, M. Nonino, M. Postman, M. Tanaka, P. Eisenhardt, P. Rosati, R.A.E. Fosbury, R. Demarco, R. Ellis, R.L. White, S.A. Stanford, S. Mei, S. Moran, T. Kodama, T. Treu1","submitted_at":"2011-03-01T20:37:33Z","abstract_excerpt":"We study the environmental dependence of stellar population properties at z ~ 1.3. We derive galaxy properties (stellar masses, ages and star formation histories) for samples of massive, red, passive early-type galaxies in two high-redshift clusters, RXJ0849+4452 and RXJ0848+4453 (with redshifts of z = 1.26 and 1.27, respectively), and compare them with those measured for the RDCS1252.9-2927 cluster at z=1.24 and with those measured for a similarly mass-selected sample of field contemporaries drawn from the GOODS-South Field. Robust estimates of the aforementioned parameters have been obtained"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1103.0265","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-01T20:37:33Z","cross_cats_sorted":[],"title_canon_sha256":"c323cd513e991e0496e77397d75d7c9c85b75ffca988fc7fa62a12d84ae1dcf0","abstract_canon_sha256":"73d843199b3f916b3fa0807901bfd84a9314bff98e625bb9461b2cf9f8a40510"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:01.479347Z","signature_b64":"5UgJA9GFgAKSZGNM+Sx0Fhhm+EiFHTBOsK0j2xF7KBPbGsna6yM7hT43dlUt7d1zgvSHkIBb8VQNGZDwKqxzCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c017bfcea541a51e01e95253e250bcfe429b27a9bf6964d405e33ff5e21b7f20","last_reissued_at":"2026-05-18T02:03:01.478747Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:01.478747Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Early-Type galaxies at z ~ 1.3. III. On the dependence of Formation Epochs and Star Formation Histories on Stellar Mass and Environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alessandro Rettura, A. Raichoor, B. Holden, F. Nakata, G. Illingworth, H.C. Ford, J.P. Blakeslee1, M. Huertas-Company, M.J. Jee, M. Nonino, M. Postman, M. Tanaka, P. Eisenhardt, P. Rosati, R.A.E. Fosbury, R. Demarco, R. Ellis, R.L. White, S.A. Stanford, S. Mei, S. Moran, T. Kodama, T. Treu1","submitted_at":"2011-03-01T20:37:33Z","abstract_excerpt":"We study the environmental dependence of stellar population properties at z ~ 1.3. We derive galaxy properties (stellar masses, ages and star formation histories) for samples of massive, red, passive early-type galaxies in two high-redshift clusters, RXJ0849+4452 and RXJ0848+4453 (with redshifts of z = 1.26 and 1.27, respectively), and compare them with those measured for the RDCS1252.9-2927 cluster at z=1.24 and with those measured for a similarly mass-selected sample of field contemporaries drawn from the GOODS-South Field. Robust estimates of the aforementioned parameters have been obtained"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.0265","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1103.0265","created_at":"2026-05-18T02:03:01.478818+00:00"},{"alias_kind":"arxiv_version","alias_value":"1103.0265v1","created_at":"2026-05-18T02:03:01.478818+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.0265","created_at":"2026-05-18T02:03:01.478818+00:00"},{"alias_kind":"pith_short_12","alias_value":"YAL37TVFIGSR","created_at":"2026-05-18T12:26:47.523578+00:00"},{"alias_kind":"pith_short_16","alias_value":"YAL37TVFIGSR4APJ","created_at":"2026-05-18T12:26:47.523578+00:00"},{"alias_kind":"pith_short_8","alias_value":"YAL37TVF","created_at":"2026-05-18T12:26:47.523578+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/YAL37TVFIGSR4APJKJJ6EUF47Z","json":"https://pith.science/pith/YAL37TVFIGSR4APJKJJ6EUF47Z.json","graph_json":"https://pith.science/api/pith-number/YAL37TVFIGSR4APJKJJ6EUF47Z/graph.json","events_json":"https://pith.science/api/pith-number/YAL37TVFIGSR4APJKJJ6EUF47Z/events.json","paper":"https://pith.science/paper/YAL37TVF"},"agent_actions":{"view_html":"https://pith.science/pith/YAL37TVFIGSR4APJKJJ6EUF47Z","download_json":"https://pith.science/pith/YAL37TVFIGSR4APJKJJ6EUF47Z.json","view_paper":"https://pith.science/paper/YAL37TVF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1103.0265&json=true","fetch_graph":"https://pith.science/api/pith-number/YAL37TVFIGSR4APJKJJ6EUF47Z/graph.json","fetch_events":"https://pith.science/api/pith-number/YAL37TVFIGSR4APJKJJ6EUF47Z/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YAL37TVFIGSR4APJKJJ6EUF47Z/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YAL37TVFIGSR4APJKJJ6EUF47Z/action/storage_attestation","attest_author":"https://pith.science/pith/YAL37TVFIGSR4APJKJJ6EUF47Z/action/author_attestation","sign_citation":"https://pith.science/pith/YAL37TVFIGSR4APJKJJ6EUF47Z/action/citation_signature","submit_replication":"https://pith.science/pith/YAL37TVFIGSR4APJKJJ6EUF47Z/action/replication_record"}},"created_at":"2026-05-18T02:03:01.478818+00:00","updated_at":"2026-05-18T02:03:01.478818+00:00"}